[Very Urgent] Need help calculating difference between two dates

[rustix]

I'm trying to write a code to display the current day and time, then accept two dates from the user and display the difference between the two dates. To display the current date and time, I've used the SimpleDateFormatter library but I'm having difficulty calculating the difference between two dates. Could someone please help me with this?

Below is my code so far

Code:

import java.util.Date;
import java.util.Scanner;
import java.text.SimpleDateFormat;

public class DateFormatter {
	public void displayNow()
	{
		Date todaysDate = new Date();
		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MMM-dd HH:mm:ss");

		String formattedDate = formatter.format(todaysDate);
		System.out.println("Today's date and time is: "+formattedDate);
	}

	public void calculateDifference(Date startDate, Date endDate)
	{
		/* This is whre i need help! */
	}

	public static void main(String[] args)
	{
		DateFormatter df = new DateFormatter();
		Scanner sc = new Scanner(System.in);
		
		df.displayNow();
		
		System.out.println("Please enter a date: ");
		String date1 = sc.next();
		System.out.println("Please enter another date: ");
		String date2 = sc.next();
	}
}

The methods displayNow() and calculateDifference(Date startDate, Date endDate) are essential and cannot be skipped out.

[masijade]

Calendar, it's setTime, getTime, and add methods, a counter, and a while loop. Check the API for Calendar and attempt something. Once you have something, post it, and we can help you correct it, but we are not going to do it for you.

[rustix]

for the record, i didn't ask anyone to do it for me!

[masijade]

And

Quote:

for the record

I didn't say you did, I just gave the warning that we wouldn't.

[Norm]

public void calculateDifference(Date startDate, Date endDate)

It seems like the above mentioned method should return something. If not, what does it do then?

[fishtoprecords]

In recent versions, the use of Calendar objects instead of Date objects is preferred for uses like this.

But in either class, the actual date/time value is kept in a long, you can just get the long, and subtract them to get the time difference, and then use an appropriate function (or even just division and mod functions) to convert the milliseconds to days, months, years.

Get the arithmetic right first, and then use DateFormat to display it.

[masijade]

Quote:

Originally Posted by fishtoprecords

In recent versions, the use of Calendar objects instead of Date objects is preferred for uses like this.

But in either class, the actual date/time value is kept in a long, you can just get the long, and subtract them to get the time difference, and then use an appropriate function (or even just division and mod functions) to convert the milliseconds to days, months, years.

Get the arithmetic right first, and then use DateFormat to display it.

Don't forget to account for the time skew that leads to the leap years. (And that is the exact reason why Calendar is preferred, now. The programmer doesn't need to bother with it.)

[suprabha]

Hi all,
I need java code to get differnce between two given dates

[masijade]

So write some.

Hint:

Calendar and it's add method. (then you start to hammer out the hour/minute/second differences after you have the "days" difference)